Stainless Steel J tubes are 1-1/2" diameter Tig Welded with thick mounting flanges and fully welded internally. Will fit most standard extractors. Fits all Type 1 and 2 upright engines 1300 - 1600cc.
Will fit all EMPI Exhaust Systems.
Note: J-Tubes eliminate heaters, reduce weight, and are perfect for warmer climates where heaters aren't needed.